console.log(Symbol.for('1')===Symbol.for('1'))

const a11 = Symbol(1)
const b11 = Symbol(1)

const objj ={
    k:'value',
    [a11]:1,
    [b11]:2
}
for (const key in objj) {
    console.log(key)
}
for (const key of Object.keys(objj)) {
    console.log(key)
}

console.log(Object.getOwnPropertyNames(objj))
console.log(Object.getOwnPropertySymbols(objj))

console.log(Reflect.ownKeys(objj))
